#cd /usr/ports/net/mrtg/

#make all

#make install

#cd /usr/ports/net/ruby-snmp

#make all;

..................

该过程，会问你一些关于日志路径等问题，不用理会它，直接回车.................

#make install

#cd /usr/local/etc/mrtg

#cp mrtg.cfg.sample mrtg

#ee mrtg

把以下几个选项修改为你自己的。其中，workdir是你的web路径，我这里的是 /usr/local/apache/htdocs/，并且按照提示，修改要监视的设备。我的主要配置如下：

WorkDir: /usr/local/apache/htdocs/mrtg

Options[_]: growright,bits

#host pc1, cfgfile cfg/192.168.0.13.cfg, port serial0

Target[192.168.0.1.13]: 1:public@192.168.0.13

MaxBytes[192.168.0.1.13]: 1250000

Title[192.168.0.1.13]: : Serial0

PageTop[192.168.0.1.13]: <H1>Traffic Analysis for Serial0

</H1>

<TABLE>

<TR><TD>System:</TD><TD>local-gw in </TD></TR>

<TR><TD>Maintainer:</TD><TD></TD></TR>

<TR><TD>Interface:</TD><TD>Serial0 (1)</TD></TR>

<TR><TD>IP:</TD><TD>local-gw (192.168.10.1)</TD></TR>

<TR><TD>Max Speed:</TD>

<TD>1250.0 kBytes/s</TD></TR>

</TABLE>

/*****其实，我修改的也只是ip地址和指定web路径而已。别的什么都没有改动****/

#cd /usr/local/sbin

#./snmpd

#ps

确认snmpd运行。

#mrtg /usr/local/etc/mrtg/mrtg.cfg

Rateup WARNING: /usr/local/bin/rateup could not read the primary log file for 192.168.0.1.13

Rateup WARNING: /usr/local/bin/rateup The backup log file for 192.168.0.1.13 was invalid as well

Rateup WARNING: /usr/local/bin/rateup Can‘t remove 192.168.0.1.13.old updating log file

Rateup WARNING: /usr/local/bin/rateup Can‘t rename 192.168.0.1.13.log to 192.168.0.1.13.old updating log file

# mrtg /usr/local/etc/mrtg/mrtg.cfg

Rateup WARNING: /usr/local/bin/rateup Can‘t remove 192.168.0.1.13.old updating log file

# mrtg /usr/local/etc/mrtg/mrtg.cfg

/*刚开始日志错误，不用管它，运行三次，便oaky了。*/

okay,http://192.168.0.13/mrtg/192.168.0.1.13.html

如图：mymrtgpic

至于如何优化，那就不是那么简单的事情了。:-)